#**explicit

                  It starts one morning when, walking down a hallway during a lull between lessons, Erik comments casually to Charles, "Don't forget to train yourself too."

                  Erik volunteers to let Charles test his powers on him so Charles can get better at controlling them.

                  Erik discovering the best way to surprise a telepath is to think about what he's going to do after he's licked Charles out, and let the licking out part slip his mind.

                  In which Charles gets hit in the face/has a black eye and everyone automatically assumes that Erik is to blame because Erik is always so angry/irritable. Erik is mortified when he discovers what people are saying/thinking and doesn't realise how angry/irritable he is all the time. Charles is amused because Erik isn't ever angry/irritable with him, its just the rest of the world that pisses Erik off.

                  It turns out, Charles is a bit of a slag.

                  Charles wakes from the absence of noise. There is an empty space in his room, beside his bed. Not quiet as in an abandoned room, but utterly, featurelessly blank. Like a box made of unblemished, impenetrable metal and Charles knows before he opens his eyes.

                  Prompt: Before sex, after sex, during a blowjob, while holding an open book with one hand - I DON'T CARE. I just HAVE TO read a fic where Charles plays with Erik's hair and it gets Erik hard.